r - place a legend for each facet_wrap grid in ggplot2 -


i have data frame:

        date server filesystem percentused 1  12/1/2011               /          60 2   1/2/2012            /var          50 3   2/1/2012             tmp          90 4  2/10/2012             /db          86 5  2/13/2012            /app          90 6  12/1/2011      b         c:          67 7   1/2/2012      b         d:          67 8   2/1/2012      b         f:          34 9  2/10/2012      b   /restore          89 10 2/13/2012      b         g:          56 11 12/1/2011      c          /          90 12  1/2/2012      c       /tmp          78 13  2/1/2012      c      /data          67 14 2/10/2012      c   /storage          34 15 2/13/2012      c  /database          12  dput(x) structure(list(date = structure(c(2l, 1l, 3l, 4l, 5l, 2l, 1l,  3l, 4l, 5l, 2l, 1l, 3l, 4l, 5l), .label = c("1/2/2012", "12/1/2011",  "2/1/2012", "2/10/2012", "2/13/2012"), class = "factor"), server = structure(c(1l,  1l, 1l, 1l, 1l, 2l, 2l, 2l, 2l, 2l, 3l, 3l, 3l, 3l, 3l), .label = c("a",  "b", "c"), class = "factor"), filesystem = structure(c(1l, 9l,  14l, 5l, 2l, 10l, 11l, 12l, 6l, 13l, 1l, 8l, 3l, 7l, 4l), .label = c("/",  "/app", "/data", "/database", "/db", "/restore", "/storage",  "/tmp", "/var", "c:", "d:", "f:", "g:", "tmp"), class = "factor"),      percentused = c(60l, 50l, 90l, 86l, 90l, 67l, 67l, 34l, 89l,      56l, 90l, 78l, 67l, 34l, 12l)), .names = c("date", "server",  "filesystem", "percentused"), class = "data.frame", row.names = c(na,  -15l))

i put legend right next each facet_wrap grid, own filesystem:

when this, puts legend on side of plot of filesystem. possible put filesystem belong each server next each grid?

ggplot(x, aes(date, percentused, group=1, colour=filesystem)) +       geom_jitter(size=0.5) + geom_smooth(method="loess", se=t) +       facet_wrap(~server, ncol=1)

meh, @joran beat me (my gridextra out of date took me 10 minutes realize it). here's similar solution, 1 skins cat generically levels in server.

library(gridextra) out <- by(data = x, indices = x$server, fun = function(m) {       m <- droplevels(m)       m <- ggplot(m, aes(date, percentused, group=1, colour = filesystem)) +           geom_jitter(size=2) + geom_smooth(method="loess", se=t)    }) do.call(grid.arrange, out)

enter image description here


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